From 5dda3897fd90783358c4c6115ef86047d8c8f503 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Sun, 8 Nov 2020 16:32:43 -0800
Subject: [PATCH] xfs: set the unwritten bit in rmap lookup flags in
 xchk_bmap_get_rmapextents

When the bmbt scrubber is looking up rmap extents, we need to set the
extent flags from the bmbt record fully.  This will matter once we fix
the rmap btree comparison functions to check those flags correctly.

Fixes: d852657ccfc0 ("xfs: cross-reference reverse-mapping btree")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/scrub/bmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 955302e7cdde9..412e2ec55e388 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -113,6 +113,8 @@ xchk_bmap_get_rmap(
 
 	if (info->whichfork == XFS_ATTR_FORK)
 		rflags |= XFS_RMAP_ATTR_FORK;
+	if (irec->br_state == XFS_EXT_UNWRITTEN)
+		rflags |= XFS_RMAP_UNWRITTEN;
 
 	/*
 	 * CoW staging extents are owned (on disk) by the refcountbt, so
-- 
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